← Subtracting fractions: different denominators lesson New set →

Subtract Fractions with Different Denominators Worksheet

Fractions lesson 16: Subtracting fractions: different denominators · Set 229 · 40 questions
TalentJR

The method (LCM, then take away): Find the LCM of the two bottom numbers. Change each fraction to that bottom number. Subtract the tops, keep the bottom, and simplify.

NameDateTime takenScore ___ / 40
  1. 1.A bottle has 3/7 litre of juice. Anaya drinks 1/4 litre. How much juice is left (in litres)? =
  2. 2.5/6 − 7/9 =
  3. 3.3/5 − 1/2 =
  4. 4.2/3 − 3/7 =
  5. 5.A bottle has 5/6 litre of juice. Riya drinks 7/9 litre. How much juice is left (in litres)? =
  6. 6.A tank is 6/7 full of water. Then water filling 1/4 of the tank is used. What fraction of the tank is full now? =
  7. 7.7/9 − 1/3 =
  8. 8.A bottle has 5/7 litre of juice. Riya drinks 1/2 litre. How much juice is left (in litres)? =
  9. 9.A bottle has 1/2 litre of juice. Arjun drinks 2/5 litre. How much juice is left (in litres)? =
  10. 10.2/7 − 1/4 =
  11. 11.3/5 − 1/6 =
  12. 12.5/6 − 3/8 =
  13. 13.6/7 − 3/4 =
  14. 14.Meera has a ribbon 3/4 m long and cuts off 2/5 m. How long is the ribbon now (in m)? =
  15. 15.A tank is 3/4 full of water. Then water filling 1/7 of the tank is used. What fraction of the tank is full now? =
  16. 16.2/3 − 2/5 =
  17. 17.5/7 − 1/4 =
  18. 18.A tank is 1/4 full of water. Then water filling 1/10 of the tank is used. What fraction of the tank is full now? =
  19. 19.6/7 − 1/3 =
  20. 20.7/8 − 3/4 =
  21. 21.1/2 − 3/8 =
  22. 22.A bottle has 2/9 litre of juice. Sara drinks 1/6 litre. How much juice is left (in litres)? =
  23. 23.A bottle has 3/4 litre of juice. Diya drinks 2/7 litre. How much juice is left (in litres)? =
  24. 24.Tara has a ribbon 9/10 m long and cuts off 1/4 m. How long is the ribbon now (in m)? =
  25. 25.A bottle has 7/10 litre of juice. Vihaan drinks 3/5 litre. How much juice is left (in litres)? =
  26. 26.5/8 − 1/2 =
  27. 27.A bottle has 3/4 litre of juice. Anaya drinks 2/5 litre. How much juice is left (in litres)? =
  28. 28.A tank is 1/2 full of water. Then water filling 1/8 of the tank is used. What fraction of the tank is full now? =
  29. 29.A bottle has 3/4 litre of juice. Ishaan drinks 5/7 litre. How much juice is left (in litres)? =
  30. 30.Tara has a ribbon 5/9 m long and cuts off 1/3 m. How long is the ribbon now (in m)? =
  31. 31.A tank is 3/4 full of water. Then water filling 2/5 of the tank is used. What fraction of the tank is full now? =
  32. 32.1/4 − 1/8 =
  33. 33.Aarav has a ribbon 3/4 m long and cuts off 3/8 m. How long is the ribbon now (in m)? =
  34. 34.3/4 − 3/8 =
  35. 35.A bottle has 5/6 litre of juice. Sara drinks 5/8 litre. How much juice is left (in litres)? =
  36. 36.A tank is 5/7 full of water. Then water filling 1/2 of the tank is used. What fraction of the tank is full now? =
  37. 37.2/5 − 1/10 =
  38. 38.5/6 − 1/9 =
  39. 39.A tank is 2/5 full of water. Then water filling 1/6 of the tank is used. What fraction of the tank is full now? =
  40. 40.A bottle has 7/9 litre of juice. Tara drinks 1/2 litre. How much juice is left (in litres)? =

Answer key

  1. 5/28
  2. 1/18
  3. 1/10
  4. 5/21
  5. 1/18
  6. 17/28
  7. 4/9
  8. 3/14
  9. 1/10
  10. 1/28
  11. 13/30
  12. 11/24
  13. 3/28
  14. 7/20
  15. 17/28
  16. 4/15
  17. 13/28
  18. 3/20
  19. 11/21
  20. 1/8
  21. 1/8
  22. 1/18
  23. 13/28
  24. 13/20
  25. 1/10
  26. 1/8
  27. 7/20
  28. 3/8
  29. 1/28
  30. 2/9
  31. 7/20
  32. 1/8
  33. 3/8
  34. 3/8
  35. 5/24
  36. 3/14
  37. 3/10
  38. 13/18
  39. 7/30
  40. 5/18

Free fractions lessons, practice and worksheets at talentjr.in/fractions-for-kids